期刊
RSC ADVANCES
卷 5, 期 17, 页码 13061-13067出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra15792c
关键词
-
资金
- National Natural Science Foundation of China [51278295, 21477076]
- China Postdoctoral Science Foundation [2013M540369]
- Shanghai Jiao Tong University Young Teacher Foundation [13X100030031]
A multi-cathode bio-electrode film reactor driven by a low voltage was applied for the denitrification process. The reactor was evaluated with simulated wastewater (120 NO3--N mg L-1) under a series of applied voltages (less than 0.5 V), and the applied voltage of 0.25 V was identified as the optimum for the best nitrate removal rate of 16.8 NO3--N mg L-1 h(-1) in 6 h. The analysis of the nitrogen balance showed that nitrite accumulation occurred a little, while there was an absence of ammonia during the denitrification process. The investigation of the denitrification mechanism showed the presence of some bacterial species on the cathode biofilm, which accounted for the direct electron transport pathway. The main experimental conditions of pH and temperature were optimized under 0.25 V with an optimum pH range of 7.0-8.0 and comfortable temperature of 30 degrees C. It seemed to be an effective approach for the denitrification with a low energy input.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据